6v3b

Cryo-EM structure of the Acinetobacter baumannii Ribosome: 70S in Empty state

Loading... Status: waiting for Mol* initialization Structural highlights 6v3b is a 10 chain structure with sequence from Acinetobacter baumannii, Acinetobacter baumannii AB0057, Acinetobacter beijerinckii ANC 3835, Acinetobacter sp. ANC 4470 and Acinetobacter sp. CIP 51.11. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 2.91Å Ligands: 2MA, 2MG, 3TD, 4OC, 5MC, 5MU, 6MZ, 7MG, MA6, MG, NA, OMG, OMU, PSU, UR3, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function N9DYI8_9GAMM Publication Abstract from PubMed Antimicrobial resistance is a major health threat as it limits treatment options for infection. At the forefront of this serious issue is Acinetobacter baumannii, a Gram-negative opportunistic pathogen that exhibits the remarkable ability to resist antibiotics through multiple mechanisms. As bacterial ribosomes represent a target for multiple distinct classes of existing antimicrobial agents, we here use single-particle cryo-electron microscopy (cryo-EM) to elucidate five different structural states of the A. baumannii ribosome, including the 70S, 50S, and 30S forms. We also determined interparticle motions of the 70S ribosome in different tRNA bound states using three-dimensional (3D) variability analysis. Together, our structural data further our understanding of the ribosome from A. baumannii and other Gram-negative pathogens and will enable structure-based drug discovery to combat antibiotic-resistant bacterial infections.IMPORTANCE Acinetobacter baumannii is a severe nosocomial threat largely due to its intrinsic antibiotic resistance and remarkable ability to acquire new resistance determinants. The bacterial ribosome serves as a major target for modern antibiotics and the design of new therapeutics. Here, we present cryo-EM structures of the A. baumannii 70S ribosome, revealing several unique species-specific structural features that may facilitate future drug development to combat this recalcitrant bacterial pathogen. Cryo-electron Microscopy Structure of the Acinetobacter baumannii 70S Ribosome and Implications for New Antibiotic Development.,Morgan CE, Huang W, Rudin SD, Taylor DJ, Kirby JE, Bonomo RA, Yu EW mBio. 2020 Jan 21;11(1). pii: mBio.03117-19. doi: 10.1128/mBio.03117-19. PMID:31964740 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ribosome 3D structures

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